In the rabbit calvarium using a titanium cap GBA model, bone augmentation was significantly greater with marrow penetration than without penetration.

No abstract

Socket cap in conjunction with ABBM appears effective in limiting post-extraction volumetric bone loss in intact sockets, while socket cap + socket cage + ABBM appears effective in limiting post-extraction bone loss in sockets with dehiscence defects.

Objective To examine the correlation between initial site‐specific characteristics of patients with multiple gingival recession defects and the outcome of root coverage therapy. Materials and Methods Pretherapy and post‐therapy study models of 21 patients (154 teeth) with multiple gingival recession defects, treated with Vestibular Incision Subperiosteal Tunnel Access (VISTA), were optically scanned. Three‐dimensional analysis of superimposed preoperative and postoperative images was performed. Linear and surface root coverage were calculated and correlated to various clinical and/or anatomical parameters. A multilevel statistical analysis was conducted, adjusting for the correlation among multiple observations. Results The mean percentages of linear root coverage were 96.2 ± 13.1% and 84.3 ± 14.4% for Miller Class I/II and Class III recessions, respectively. The mean percentages of root surface area coverage were 92.1 ± 12.0% and 78.6 ± 15.7% for Miller Class I/II and III defects, respectively. Root prominence, initial recession width and posterior tooth type were negatively correlated with linear and root surface area coverage. Initial recession depth was negatively correlated with root surface area coverage. Initial gingival margin thickness was positively associated with both linear and root surface area coverage. Conclusion The results of the present study identified important positive and negative site‐specific characteristics that may have utility in predicting the outcome of root coverage. Clinical Significance This study used sensitive 3‐dimensional digital analysis tools to examine the correlation between initial site‐specific characteristics of patients with multiple gingival recession defects and the outcome of periodontal root coverage therapy. Results demonstrated that initial root prominence, loss of interdental tissue (Miller Class III), molar tooth type, initial recession depth and width were negatively correlated with the outcome of periodontal root coverage achieved. Conversely, initial gingival margin thickness was associated with increased percentage of root coverage. These site‐specific characteristics may serve as important risk indicators to predict the outcome of root coverage procedure.

AimThis study sought to investigate dimensional changes to the alveolar bone following extraction and application of novel devices used for obturation of socket orifice (socket cap) and space maintenance in sockets with facial dehiscence (socket cage).Material and methodsSix Macaca fascicularis had six teeth each removed according to the following intervention groups (groups A–C intact alveolar bone; D–E facial dehiscence): negative control (A); socket obturated with cap (B); filled with anorganic bovine bone mineral (ABBM) + socket cap (C); dehiscence negative control (D); socket cap + socket cage (E); ABBM + socket cap + socket cage (F). Serial CBCT scans at preoperatively, 6 and 12 weeks following intervention were compared to quantify linear alveolar bone alterations.ResultsWithout therapeutic intervention, intact sockets exhibited significant reduction in width at the crestal 2 mm of the ridge crest within 6 weeks. Compared with the negative control sites which lost up to 52% of crestal bone width, sites treated with socket cap + ABBM lost at most 4% of bone width at the crestal 2 mm. Similar results were seen in the dehiscence groups, with the combination of socket cap + socket cage + ABBM maintaining the greatest socket width and height dimensions.ConclusionsResults from the current non‐human primate study suggest that the socket cap and socket cage devices, when used in conjunction with xenograft proved effective in minimizing post‐extraction socket width loss and height seen in both intact sockets and sockets with facial dehiscence defects.